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250 lines
8 KiB
Java
250 lines
8 KiB
Java
/*
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* Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.security.ssl;
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import java.io.PrintStream;
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import java.util.Locale;
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import sun.security.util.HexDumpEncoder;
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import java.nio.ByteBuffer;
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import sun.security.action.GetPropertyAction;
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/**
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* This class has be shamefully lifted from sun.security.util.Debug
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*
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* @author Gary Ellison
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*/
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public class Debug {
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private String prefix;
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private static String args;
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static {
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args = GetPropertyAction.privilegedGetProperty("javax.net.debug", "");
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args = args.toLowerCase(Locale.ENGLISH);
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if (args.equals("help")) {
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Help();
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}
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}
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public static void Help()
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{
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System.err.println();
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System.err.println("all turn on all debugging");
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System.err.println("ssl turn on ssl debugging");
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System.err.println();
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System.err.println("The following can be used with ssl:");
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System.err.println("\trecord enable per-record tracing");
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System.err.println("\thandshake print each handshake message");
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System.err.println("\tkeygen print key generation data");
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System.err.println("\tsession print session activity");
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System.err.println("\tdefaultctx print default SSL initialization");
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System.err.println("\tsslctx print SSLContext tracing");
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System.err.println("\tsessioncache print session cache tracing");
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System.err.println("\tkeymanager print key manager tracing");
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System.err.println("\ttrustmanager print trust manager tracing");
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System.err.println("\tpluggability print pluggability tracing");
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System.err.println();
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System.err.println("\thandshake debugging can be widened with:");
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System.err.println("\tdata hex dump of each handshake message");
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System.err.println("\tverbose verbose handshake message printing");
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System.err.println();
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System.err.println("\trecord debugging can be widened with:");
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System.err.println("\tplaintext hex dump of record plaintext");
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System.err.println("\tpacket print raw SSL/TLS packets");
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System.err.println();
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System.exit(0);
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}
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/**
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* Get a Debug object corresponding to whether or not the given
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* option is set. Set the prefix to be the same as option.
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*/
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public static Debug getInstance(String option)
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{
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return getInstance(option, option);
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}
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/**
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* Get a Debug object corresponding to whether or not the given
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* option is set. Set the prefix to be prefix.
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*/
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public static Debug getInstance(String option, String prefix)
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{
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if (isOn(option)) {
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Debug d = new Debug();
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d.prefix = prefix;
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return d;
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} else {
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return null;
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}
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}
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/**
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* True if the property "javax.net.debug" contains the
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* string "option".
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*/
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public static boolean isOn(String option)
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{
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if (args == null) {
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return false;
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} else {
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int n = 0;
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option = option.toLowerCase(Locale.ENGLISH);
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if (args.indexOf("all") != -1) {
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return true;
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} else if ((n = args.indexOf("ssl")) != -1) {
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if (args.indexOf("sslctx", n) == -1) {
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// don't enable data and plaintext options by default
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if (!(option.equals("data")
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|| option.equals("packet")
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|| option.equals("plaintext"))) {
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return true;
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}
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}
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}
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return (args.indexOf(option) != -1);
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}
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}
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/**
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* print a message to stderr that is prefixed with the prefix
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* created from the call to getInstance.
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*/
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public void println(String message)
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{
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System.err.println(prefix + ": "+message);
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}
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/**
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* Print a message to stdout.
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*/
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static void log(String message) {
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System.out.println(Thread.currentThread().getName() + ": " + message);
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}
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/**
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* print a blank line to stderr that is prefixed with the prefix.
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*/
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public void println()
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{
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System.err.println(prefix + ":");
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}
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/**
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* print a message to stderr that is prefixed with the prefix.
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*/
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public static void println(String prefix, String message)
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{
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System.err.println(prefix + ": "+message);
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}
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public static void println(PrintStream s, String name, byte[] data) {
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s.print(name + ": { ");
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if (data == null) {
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s.print("null");
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} else {
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for (int i = 0; i < data.length; i++) {
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if (i != 0) s.print(", ");
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s.print(data[i] & 0x0ff);
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}
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}
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s.println(" }");
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}
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/**
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* Return the value of the boolean System property propName.
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*
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* Note use of privileged action. Do NOT make accessible to applications.
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*/
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static boolean getBooleanProperty(String propName, boolean defaultValue) {
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// if set, require value of either true or false
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String b = GetPropertyAction.privilegedGetProperty(propName);
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if (b == null) {
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return defaultValue;
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} else if (b.equalsIgnoreCase("false")) {
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return false;
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} else if (b.equalsIgnoreCase("true")) {
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return true;
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} else {
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throw new RuntimeException("Value of " + propName
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+ " must either be 'true' or 'false'");
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}
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}
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static String toString(byte[] b) {
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return sun.security.util.Debug.toString(b);
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}
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static void printHex(String prefix, byte[] bytes) {
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HexDumpEncoder dump = new HexDumpEncoder();
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synchronized (System.out) {
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System.out.println(prefix);
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try {
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dump.encodeBuffer(bytes, System.out);
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} catch (Exception e) {
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// ignore
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}
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System.out.flush();
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}
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}
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static void printHex(String prefix, ByteBuffer bb) {
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HexDumpEncoder dump = new HexDumpEncoder();
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synchronized (System.out) {
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System.out.println(prefix);
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try {
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dump.encodeBuffer(bb.slice(), System.out);
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} catch (Exception e) {
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// ignore
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}
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System.out.flush();
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}
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}
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static void printHex(String prefix, byte[] bytes, int offset, int length) {
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HexDumpEncoder dump = new HexDumpEncoder();
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synchronized (System.out) {
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System.out.println(prefix);
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try {
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ByteBuffer bb = ByteBuffer.wrap(bytes, offset, length);
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dump.encodeBuffer(bb, System.out);
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} catch (Exception e) {
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// ignore
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}
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System.out.flush();
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}
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}
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}
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